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The experiments of Antoine Lavoisier (1743–1794), a French chemist regarded as the founder of modern chemistry, were among the first to be truly quantitative. Lavoisier showed that although matter changes its state in a chemical reaction , the quantity of matter is the same at the end as at the beginning of every chemical reaction.
1021 – Ibn al-Haytham (Alhacen) pioneers the experimental scientific method and experimental physics in his Book of Optics, where he devises the first scientific experiments on optics, including the first use of the camera obscura to prove that light travels in straight lines and the first experimental proof that visual perception is caused ...
Thomson's experiments with cathode rays (1897): J. J. Thomson's cathode ray tube experiments (discovers the electron and its negative charge). Eötvös experiment (1909): Loránd Eötvös publishes the result of the second series of experiments, clearly demonstrating that inertial and gravitational mass are one and the same.
Experiments on sensation and perception have a very long history in experimental psychology (see History above). Experimenters typically manipulate stimuli affecting vision, hearing, touch, smell, taste and proprioception. Sensory measurement plays a large role in the field, covering many aspects of sensory performance - for example, minimum ...
1021 – The astronomer, physicist and mathematician Ibn al-Haytham combines observations, experiments and rational arguments in his Book of Optics. c. 1025 – The scholar al-Biruni develops experimental methods for mineralogy and mechanics, and conducts elaborate experiments related to astronomical phenomena.
The design of experiments, also known as experiment design or experimental design, is the design of any task that aims to describe and explain the variation of information under conditions that are hypothesized to reflect the variation.
The history of scientific method considers changes in the methodology of scientific inquiry, as distinct from the history of science itself. The development of rules for scientific reasoning has not been straightforward; scientific method has been the subject of intense and recurring debate throughout the history of science, and eminent natural philosophers and scientists have argued for the ...
1997: CDF and DØ experiments at Fermilab: Top quark. 1998: Supernova Cosmology Project and the High-Z Supernova Search Team: discovery of the accelerated expansion of the Universe and dark energy; 2000: The Tau neutrino is discovered by the DONUT collaboration